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Table 2 Associations of the SNPs and haplotypes in ESR 2, EAAT 2, BDNF, GABRA 6, DRD 1, OXTR and 5-HTR2C genes with sow maternal infanticide behavior

From: Association and haplotype analysis of candidate genes in five genomic regions linked to sow maternal infanticide in a white Duroc × Erhualian resource population

gene

Polymorphism

Allele or Haplotype1

Allele or Haplotype Frequency

Individuals of maternal infanticide

    

T

UT

DF

LRS

P

ESR 2 (HM754215)

g.1170 G > A

A

0.341

40

24

1

4.043

0.044*

  

G

0.659

24

40

   
 

g. 1202G > A

A

0.501

52

29

1

6.623

0.010*

  

G

0.499

29

52

   
 

g. 2681G > T

G

0.534

50

28

1

6.290

0.012*

  

T

0.466

28

50

   
 

-

GGT

0.457

10

30

2

5.993

0.049*

 

-

GAG

0.143

7

2

   
 

-

AAG

0.361

23

8

   

EAAT 2 (HM754214)

g. 233G > A

A

0.693

43

20

1

8.594

0.003*

  

G

0.307

20

43

   
 

g.489G > A

A

0.235

19

28

1

1.734

0.188

  

G

0.765

28

19

   
 

g.1028G > A

A

0.238

20

29

1

1.662

0.197

  

G

0.762

29

20

   
 

-

AGG

0.652

29

6

2

10.124

0.007*

 

-

GAA

0.278

4

20

   
 

-

GGG

0.070

2

11

   

BDNF (HM754212)

g.612C > A

C

0.748

27

19

1

1.391

0.238

  

A

0.252

19

27

   
 

g.2723G > A

G

0.513

37

45

1

0.781

0.377

  

A

0.487

45

37

   
 

g.3481A > G

A

0.594

33

31

1

0.063

0.803

  

G

0.406

31

33

   
 

-

AAA

0.245

9

12

3

3.762

0.288

 

-

CAA

0.241

19

8

   
 

-

CGA

0.108

4

9

   
 

-

CGG

0.394

16

19

   

OXTR (HM754217)

g.509G > A

G

0.811

21

15

1

1.000

0.316

  

A

0.189

15

21

   
 

g.1211T > C

T

0.487

26

35

1

1.333

0.248

  

C

0.513

35

26

   
 

g.2271C > T

C

0.836

13

21

1

1.900

0.168

  

T

0.164

21

13

   
 

-

ACC

0.193

15

8

3

2.350

0.503

 

-

GTT

0.146

10

16

   
 

-

GTC

0.357

15

18

   
 

-

GCC

0.304

21

19

   

DRD 1 (HM754213)

g.1013C > G > T

C

0.500

47

35

2

9.485

0.009*

  

G

0.424

28

46

   
  

T

0.076

7

1

   
 

g.1655C > T

C

0.795

26

17

1

1.898

0.168

  

T

0.205

17

26

   
 

-

GT

0.205

5

17

3

10.068

0.018*

 

-

TC

0.066

7

1

   
 

-

CC

0.511

30

18

   
 

-

GC

0.218

6

12

   

GABRA 6 (HM754216)

g. 176C > T

T

0.266

30

37

1

0.546

0.460

  

C

0.734

37

30

   
 

g.444A > T

A

0.576

29

35

1

0.563

0.453

  

T

0.424

35

29

   
 

g.1520G > A

T

0.590

29

34

1

0.397

0.529

  

G

0.410

34

29

   
 

-

TTG

0.521

15

18

2

4.510

0.123

 

-

CAT

0.257

15

17

   
 

-

CTG

0.132

11

3

   

5-HTR2C (HM754211)

g.675C > T

A

0.606

15

7

1

2.909

0.088

  

G

0.394

7

15

   
  1. Note: T: Transmission; UT: Untransmission; LRS: likelihood ratio statistic. The likelihood ratio statistic is minus twice the difference in log-likelihoods; P: P value from the overall test of association; DF: degree of freedom;
  2. *: significant in statistics
  3. 1. Rare haplotypes were excluded from association study.